package com.HooDee.netty.secondeDemo;

import io.netty.channel.ChannelInitializer;
import io.netty.channel.ChannelPipeline;
import io.netty.channel.socket.SocketChannel;
import io.netty.handler.codec.LengthFieldBasedFrameDecoder;
import io.netty.handler.codec.LengthFieldPrepender;
import io.netty.handler.codec.string.StringDecoder;
import io.netty.handler.codec.string.StringEncoder;
import io.netty.util.CharsetUtil;

/**
 * Package: com.HooDee.netty.secondeDemo
 * Description：
 * Author: 蒋豪
 * Date:  2021.09.10 22:16
 * Modified By:
 */
public class MyclientInitializer extends ChannelInitializer<SocketChannel> {
    @Override
    protected void initChannel(SocketChannel socketChannel) throws Exception {
        ChannelPipeline pipeline = socketChannel.pipeline();
        pipeline.addLast(new LengthFieldBasedFrameDecoder(Integer.MAX_VALUE,0, 4, 0,4));
        pipeline.addLast(new LengthFieldPrepender(4));
        // 编码 解码
        pipeline.addLast(new StringDecoder(CharsetUtil.UTF_8));
        pipeline.addLast(new StringEncoder(CharsetUtil.UTF_8));
        // 自己的处理器
        pipeline.addLast(new MyClientHandler());
    }
}
